How much of a threat is Marine Le Pen?

With just three days to go before the first round of the election, today's French papers offer you an idiot's guide to all the candidates' manifestos - and ask if Marine Le Pen could cause another upset, like her father in 2002.

Le Parisien has an idiot's guide to all ten candidates' policy programmes - to help that quarter of voters whom Le Figaro says still haven't made up their minds.

Liberation headlines on the threat of Marine Le Pen - in an unstable and unpredictable election campaign, could she repeat her father's shock result of ten years ago?